Implement a 0 or 1 designation of a location for 8bit data

#include <stdio.h>void bit_set (unsigned char *p_date, unsigned char position, int flag) {if (flag = = 1) {*p_date |= (1  << (position-1))//0000 0010 or 0000 0001}                                   //0000 0011else if (flag = 0) {*p_date &= ~ (1 << (Position- 1));//0000 0010&1111 1110}                                    //0000 0010}int Main () {unsigned char val = 2;bit_set (&val, 1, 0);p rintf ("%d\n", V AL); GetChar (); return 0;}

Implement a 0 or 1 designation of a location for 8bit data